兄弟 きょうだい喧嘩 けんかじゃないです
kyōdaikenkajanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 兄弟喧嘩

1. It's not a sibling quarrel.; It's not just a fight between brothers.

Negative
Polite
Casual Register